Abstract: A receiver module and a terminal device are provided. The receiver module includes a housing, a receiver, a drive assembly and a soundproofing assembly, where the housing is internally provided with an accommodating space, the receiver is arranged in the accommodating space, and the housing and the receiver fit together to form a sound cavity, a sound-emitting side of the receiver facing towards the sound cavity; the housing is provided with a first sound-emitting hole and a second sound-emitting hole; the drive assembly and the soundproofing assembly are connected, and the drive assembly is configured to drive the soundproofing assembly to be in a first state or a second state.

Abstract: A multi-functional telescopic device which includes a front hand grip cylinder element at a front end with a button, a middle hand grip cylinder element at a middle, a rear cylinder element at a tail end opposite to the front end, and a tail fastener; a middle layer fixed sleeve element connecting communicating with the middle hand grip cylinder element for sliding movement; an extensible tube comprising a threaded connecting head at a front end arranged for connecting to a tool head and a rack at a top side thereof, and is capable of sliding movement for length extension or length shortening initiated by a movement of the middle hand grip cylinder element, wherein the button is arranged for engaging with the rack at a fixed-length state and for disengaging with the rack at a length adjustment state.

Abstract: This disclosure discloses a mobile terminal, where the mobile terminal includes a housing (100) having an inner cavity (110) and a receiver (200) provided in the inner cavity (110). The inner cavity (110) includes a receiver front cavity (111) and a receiver rear cavity (112) that are isolated from each other. The receiver front cavity (111) and the receiver rear cavity (112) are respectively located on front and rear sides of the receiver (200) in a vibration direction of a diaphragm of the receiver (200). The housing (100) is provided with a first sound hole communicating with the receiver front cavity (111), and the housing (100) is provided with a second sound hole communicating with the receiver rear cavity (112).

Abstract: A receiver module and a terminal device are provided. The receiver module includes a housing, a receiver, a drive assembly and a soundproofing assembly, where the housing is internally provided with an accommodating space, the receiver is arranged in the accommodating space, and the housing and the receiver fit together to form a sound cavity, a sound-emitting side of the receiver facing towards the sound cavity; the housing is provided with a first sound-emitting hole and a second sound-emitting hole; the drive assembly and the soundproofing assembly are connected, and the drive assembly is configured to drive the soundproofing assembly to be in a first state or a second state.

Abstract: This disclosure discloses a mobile terminal, where the mobile terminal includes a housing (100) having an inner cavity (110) and a receiver (200) provided in the inner cavity (110). The inner cavity (110) includes a receiver front cavity (111) and a receiver rear cavity (112) that are isolated from each other. The receiver front cavity (111) and the receiver rear cavity (112) are respectively located on front and rear sides of the receiver (200) in a vibration direction of a diaphragm of the receiver (200). The housing (100) is provided with a first sound hole communicating with the receiver front cavity (111), and the housing (100) is provided with a second sound hole communicating with the receiver rear cavity (112).

Abstract: A multi-functional telescopic device which includes a front hand grip cylinder element at a front end with a button, a middle hand grip cylinder element at a middle, a rear cylinder element at a tail end opposite to the front end, and a tail fastener; a middle layer fixed sleeve element connecting communicating with the middle hand grip cylinder element for sliding movement; an extensible tube comprising a threaded connecting head at a front end arranged for connecting to a tool head and a rack at a top side thereof, and is capable of sliding movement for length extension or length shortening initiated by a movement of the middle hand grip cylinder element, wherein the button is arranged for engaging with the rack at a fixed-length state and for disengaging with the rack at a length adjustment state.